CN102631239B - Fine dissection electrosurgical device - Google Patents
Fine dissection electrosurgical device Download PDFInfo
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- CN102631239B CN102631239B CN201210028800.5A CN201210028800A CN102631239B CN 102631239 B CN102631239 B CN 102631239B CN 201210028800 A CN201210028800 A CN 201210028800A CN 102631239 B CN102631239 B CN 102631239B
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- electrosurgery
- active electrode
- slender axles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/042—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating using additional gas becoming plasma
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
- A61B2018/00583—Coblation, i.e. ablation using a cold plasma
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00589—Coagulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1472—Probes or electrodes therefor for use with liquid electrolyte, e.g. virtual electrodes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/002—Irrigation
Abstract
The present invention relates to a kind of electrosurgery rod.At least some exemplary embodiment is such electrosurgery rod, and described electrosurgery rod comprises: slender axles, and it defines handle end and far-end; First row discharge hole, it is positioned on the far-end of described slender axles; The first active electrode formed by conductive material, it is arranged on the far-end of described slender axles, and described first active electrode has edge feature; The first refurn electrode formed by conductive material, it is arranged as with described first active electrode at a distance of substantially invariable distance; And suction socket, on its far-end being positioned at described slender axles and fluid is coupled to second fluid conduit.
Description
Technical field
The disclosure relates to fine dissection electrosurgical device.
Background technology
Electrosurgery field comprises multiple wide loosely-related surgical technic, the common ground of described surgical technic be all the electric power to revise structure or the integrity of tissue of patient.Electrosurgery (procedure) is undertaken operating to cut or ablation tissue structure by the electric current applying high frequency usually, and wherein said operation can be one pole or bipolar.Monopolar technique relies on the single electrode for return current placed away from the surgical site on patient body, and wherein surgical device only defines single electrode column, and described electrode column provides surgical result.Bipolar devices is included in two or more electrodes on identical supporter, and two or more electrodes described are used for applying electric current between its surface.
Due to electrosurgery and technology generally reduce the patient relevant to cutting operation hemorrhage and damage, so electrosurgery and technology advantageous particularly.In addition, Electrosurgical ablation operation (wherein tissue surface and volume can be shaped again) cannot be copied by other treatment mode.
Radio frequency (RF) energy provides efficient cutting tissue and condensation due to it and relatively easily arrives destination organization, so use in the surgical operation of broad range by entrance or sleeve pipe.Traditional one pole high frequency electrosurgical device, usually by producing voltage difference between active electrode and destination organization, causes the physical clearance of crossing between electrode and tissue form electric arc and operate.When electric arc and contact tissue, there is rapid tissue due to the high current density between electrode and tissue and heat.This high current density causes Cell sap to be rapidly evaporated to steam (stream), thus produces " cutting effect " along the path of local organization heating.Therefore, organize the path along the Cell sap of evaporation to separate, in the region of surrounding target tissue site, cause undesired collateral tissue to damage.This collateral tissue damages and often causes indiscriminate disorganization, thus causes tissue to lose normal function.In addition, described device cannot directly remove any tissue, but depends on the tissue damaging and organize district and permission health finally to remove breaking-up.
Electrosurgical techniques at present for ablation of tissue may not possess the ability providing soft tissue fine dissection.The far-end of electro-surgical device is wide and flat, produces the relatively wide area of volume tissue displacement and makes to carry out fine dissection along tissue plane owing to lacking degree of accuracy that current tip geometry provides and be more difficult to realize.In addition, the overall dimensions due to large ablting surface sum device tip makes the surgical operation visual field of doctor thicken, and identifies that plane becomes more difficult.Meticulous soft tissue anatomical cannot be provided to be use electrosurgical techniques for the important inferior position of in ablation of tissue, especially in arthrocsopic surgery, Otorhinolaryngologic operation and spinal operation.
Traditional monopolar RF system can provide the fine dissection ability of soft tissue, but also may cause the subsidiary cause thermal damage of high level.In addition, these devices may the uncontrollable necrotic depths by treated tissue.The high-heat strength that these systems produce causes surrounding tissue to burn and burns, and causes remaining tissue pain to increase and recovers slower.In addition, provide electro-surgical device the expectation of the fine dissection of soft tissue to undermine and provide the consistent ability melting cutting and the significantly subsidiary damage of nothing while allowing the adjoint hemostasis of remaining tissue and good condensation.
Therefore, still expect that the system and method improved carries out the fine dissection of soft tissue for melting via electrosurgical tissue.Particularly, the system operable of improvement is used in fine dissection operation on soft tissue, provide level and smooth and clean cut, the efficient combination with hemostasis and efficient coagulability during cutting, it will provide competitive advantage.
Summary of the invention
According to an aspect of the present disclosure, provide a kind of electrosurgery rod, comprising: slender axles, it defines handle end and far-end; Adapter, it comprises the first acusector and the second acusector; Insulating sheath, is characterized in that the multiple discharge orifices be positioned on the far-end of described slender axles, and described multiple discharge orifice fluid is coupled to first fluid conduit, and described first fluid conduit is in described slender axles; The first active electrode formed by conductive material, it is arranged on the far-end of described slender axles, and described first active electrode has edge feature, and described first active electrode is electrically coupled to described first acusector; The first refurn electrode formed by conductive material, described first refurn electrode comprise be arranged as and the far-end summit of described first active electrode at a distance of the extended characteristics portion of substantially invariable distance, and described first refurn electrode is electrically coupled to described second acusector; And suction socket, on its far-end being positioned at described slender axles and fluid is coupled to second fluid conduit, described second fluid conduit is in described slender axles.
According to another aspect of the present disclosure, provide a kind of system, comprising: electrosurgery controller, described electrosurgery controller is configured to produce radio frequency (RF) energy relative to returning terminals at active terminals place; Electrosurgery rod, it is coupled to described electrosurgery controller, and described electrosurgery rod comprises: slender axles, and it defines handle end and far-end; Insulating sheath, is characterized in that the multiple discharge orifices be positioned on the far-end of described slender axles, and described multiple discharge orifice fluid is coupled to first fluid conduit, and described first fluid conduit is in described slender axles; The first active electrode formed by conductive material, it is arranged on the far-end of described slender axles, and described first active electrode has edge feature, and described first active electrode is electrically coupled to described first acusector; The first refurn electrode formed by conductive material, described first refurn electrode comprise be arranged as and the far-end summit of described first active electrode at a distance of the extended characteristics portion of substantially invariable distance, and described first refurn electrode is electrically coupled to described second acusector; And suction socket, on its far-end being positioned at described slender axles and fluid is coupled to second fluid conduit, described second fluid conduit is in described slender axles.
According to another aspect of the present disclosure, provide a kind of method, it comprises: conductor fluid is flowed being arranged in the fluid conduit systems in electrosurgery rod, described conductor fluid is discharged by multiple discharge orifice and flows through the refurn electrode being arranged in described fluid conduit systems far-end, and then discharges on active electrode; Electric energy is applied between described active electrode and described refurn electrode; In response to described energy, form local plasma close to the edge feature be arranged on described active electrode; By described local plasma, melt a part for the destination organization close to described edge feature; And in response to described energy, heating, close to the described destination organization be arranged in the smooth features portion of the position separated away from described edge feature on described active electrode, is stopped blooding to provide adjoint thus.
According to another aspect of the present disclosure, provide a kind of electrosurgery rod, comprising: slender axles, it defines handle end and far-end; Adapter, it comprises the first acusector and the second acusector; The first active electrode formed by conductive material, it is arranged on the far-end of described slender axles, and described first active electrode is electrically coupled to described first acusector; Wherein said first active electrode has edge feature at the first discrete positions place, and has smooth features portion at the second discrete positions place; And the first refurn electrode to be formed by conductive material, described first refurn electrode is electrically coupled to described second acusector.
Accompanying drawing explanation
For the detailed description of exemplary embodiment, referring now to accompanying drawing, wherein:
Fig. 1 display is according to the Electrosurgical system of at least some embodiment;
Fig. 2 A shows the perspective view according to a part for the rod of at least some embodiment;
Fig. 2 B shows the end-view according to the rod of at least some embodiment;
Fig. 2 C shows the viewgraph of cross-section according to the rod of at least some embodiment;
Fig. 3 A shows the side view according to the rod of at least some embodiment;
Fig. 3 B shows the side view according to the rod of at least some embodiment;
Fig. 3 C shows the viewgraph of cross-section according to the rod of at least some embodiment;
Fig. 4 A shows the viewgraph of cross-section according to the rod of at least some embodiment;
Fig. 4 B shows the viewgraph of cross-section according to the rod of at least some embodiment;
Fig. 5 display is according to both the end-view (left side) of the rod connector of at least some embodiment and viewgraph of cross-section (the right);
Fig. 6 display is according to both the end-view (left side) of the controller adapter of at least some embodiment and viewgraph of cross-section (the right);
Fig. 7 display is according to the electric block chart of the electrosurgery controller of at least some embodiment; And
Fig. 8 display is according to the method for at least some embodiment.
Detailed description of the invention
Running through following description and claims uses particular term to refer to particular system components.To design as it will be apparent to those skilled in the art that and the company manufacturing Electrosurgical system can refer to an assembly with different names.This part of file is not intended to distinguish the assembly that title is different and function is identical.
In following discussion and claims, term " comprises " and " comprising " uses in open mode, and therefore should be understood to imply " include, but are not limited to ... ".And term " coupling " is intended to mean indirectly or directly to connect.Therefore, if first device is coupled to the second device, so described connection can by directly connecting or being connected with the Indirect Electro of connection by passing through other devices.
Quote singulative object and comprise the probability that there is a plurality of same item.More specifically, as in this article with in following claims use, singulative " ", " described " comprise a plurality of quoting, unless context clearly indicates in addition.It shall yet further be noted that sharp power claim to be written as and get rid of any selectable unit.Thus, this statement is used as the antecedent basis of the use that the use of the exclusiveness term of such as " individually ", " only " relevant with the statement of claim element or " negative " limit.Finally, should be appreciated that unless otherwise defined, the same meaning that the meaning of all technology used herein and scientific terminology and the those of ordinary skill in field that the invention belongs to are understood usually.
" active electrode " should mean with as therapeutic goal contact tissue or be in close proximity to and produce as during the organizing of therapeutic goal the surgical operation bar electrode that electroinitiation organizes modification effects.
" refurn electrode " should mean the electrosurgery bar electrode of the current flow path for providing electronics relative to active electrode, and/or itself does not produce to the tissue as therapeutic goal the electrosurgery bar electrode that electroinitiation organizes modification effects.
The fluid conduit systems being called as " in slender axles " not only should comprise the independent fluid conduit systems be physically present in the internal capacity of slender axles, and the internal capacity itself comprising slender axles is the situation of fluid conduit systems.
When providing value scope, should be appreciated that described in each intervention value between the upper limit and lower limit of described scope and any other in described scope, value or intervention value are included in the present invention.And, expection can independent of or set forth and require any optional feature of described invention change in conjunction with any one or more features described herein.
The all existing theme mentioned in this article (such as, open, patent, patent application and hardware) entirety is incorporated herein by reference, except not a theme may conflict (in the case of a conflict, should be as the criterion with proposed) mutually herein with theme of the present invention.The object quoted only is provided for disclosing before the applying date of the application.Be interpreted as license the present invention without any content herein to have no right because of existing invention, the date of this type of material to be shifted to an earlier date.
Before each embodiment of detailed description, should be appreciated that and the invention is not restricted to specific change described in this paper, because without departing from the spirit and scope of the invention, various change and amendment can be made, and available equivalents substitutes.As those skilled in the art will understand upon reading the present disclosure, described herein and illustrated each independent embodiment have do not depart from the scope of the present invention or under spirit can easily with any character separation of other several embodiments or the discrete assembly of combination and feature.In addition, many amendments can be made to adapt to particular condition, material, the compositions of material, the process of target, process action or step, the spirit or scope of the present invention.All such modifications are intended to be in the scope of the claims made herein.
Fig. 1 graphic extension is according to the Electrosurgical system 100 of at least some embodiment.Particularly, Electrosurgical system comprises the electrosurgery rod 102 (hereinafter referred to as " rod ") being coupled to electrosurgery controller 104 (hereinafter referred to as " controller ").Described excellent 102 comprise the slender axles 106 defining far-end 108, far-end 108 are arranged at least some electrode.Described slender axles 106 also define handle end or near-end 110, and at surgery, doctor grips rod 102 on described handle end or near-end 110.Rod 102 also comprises the flexible multiconductor cable 112 holding many electric leads (specifically not showing in Fig. 1), and described flexible multiconductor cable 112 stops in rod connector 114.As shown in Figure 1, such as by the controller adapter 120 on outer surface 122 (in the illustrated case of Fig. 1, being front), rod 102 is coupled to controller 104.
In certain embodiments, rod 102 has the one or more internal fluid conduit (although invisible the view of Fig. 1) be coupled to from the accessibility tubular element in outside.As shown, rod 102 has flexible tubular element 116 and the second flexible tubular element 118.In certain embodiments, flexible tubular element 116 is for providing conductor fluid (such as, saline) to the far-end 108 of rod.Similarly, in certain embodiments, flexible tubular element 118 is for providing suction to the far-end 108 of rod.
Still with reference to figure 1, the outer surface 122 that display device or interface panel 124 pass through controller 104 is visible, and in certain embodiments, user can pass through the operator scheme of interface device 124 and associated button 126 selection control 104.
In certain embodiments, Electrosurgical system 100 also comprises pedal part 130.Pedal part 130 can comprise one or more device with pedal 132 and 134, flexible multiconductor cable 136 and tirasse 138.Although only show two device with pedal 132,134, one or more device with pedal can be implemented.The outer surface 122 of controller 104 can comprise the corresponding adapter 140 being coupled to tirasse 138.Doctor can use pedal part 130 to control the various aspects of controller 104, such as operator scheme.For example, the such as device with pedal of device with pedal 132 may be used for applying radio frequency (RF) to rod 102 and carries out on-off control, and more specifically, for controlling the energy in ablation mode.Second device with pedal of such as device with pedal 134 may be used for the operator scheme controlling and/or arrange Electrosurgical system.For example, the actuating of device with pedal 134 can switch between the energy grade of ablation mode.
The Electrosurgical system 100 of each embodiment can be to have various modes of operation.A kind of such pattern adopts
technology.Particularly, the assignee of present disclosure is the owner of Coblation technology.Coblation technology relate to rod 102 one or more active electrode and one or more refurn electrode between apply radio frequency (RF) signal to form high electric field intensity near destination organization.In region between described one or more active electrode and destination organization, described electric field intensity can be enough to evaporate described one or more active electrode at least partially above conductor fluid.Conductor fluid can be intrinsic existence, such as blood in body, or in some cases, it is extracellular fluid or intracellular fluid.In other embodiments, conductor fluid can be liquid or gas, such as isotonic saline solution.In certain embodiments, such as, bore intercalated disc surgical operation, conductor fluid such as passes through rod 102 near active electrode and/or to target site transmission by inner passage and flexible tubular element 116.
When conductor fluid be heated to fluid vaporised atom condense again faster than atom time, gas formed.When the energy of abundance is applied to described gas, atom collides mutually, causes the release of electronics in described process, and forms ionized gas or plasma (so-called " the 4th kind of state of material ").In other words, by driving a current through gas or electromagnetic wave being directed to heated air and ionized gas in gas, thus plasma can be formed.Energy is directly given the free electron in plasma by the method that plasma is formed, and electron-atom collision discharges more polyelectron, and described process is stacked until reach desired degree of ionization.Can more complete plasma be found to describe in the plasma physics of R.J.Goldston and P.H.Rutherford of the plasma object laboratory of Puleston university (1995) (its whole disclosure is incorporated to herein by reference).
Density along with plasma becomes enough low (that is, for aqueous solution, being less than about 1020 atom/cubic centimetres), and the increase of electronics mean free path makes injected electrons subsequently cause the shock in plasma to ionize.When the ionic particles in plasmasphere has enough energy (such as, 3.5 electron volts (eV) or 5eV) time, the collision with the ionic particles of the molecule forming destination organization makes the molecular scission of destination organization, make molecule be separated into free radical, then free radical is combined into gaseous state or liquid species.Electronics in usual plasma carries electric current or electromagnetic wave absorption, and therefore hotter than ionic particles.Therefore, take away from destination organization and carry most plasma heat towards the electronics of active electrode or refurn electrode, thus destination organization molecular breakdown is opened with non-thermal type in fact by ionic particles.
Be separated (contrary with thermal evaporation or carbonization) by molecule, destination organization to be isolated to the comparatively molecule of micromolecule and/or atom (such as hydrogen, oxygen, oxycarbide, Hydrocarbon and nitrogen compound) by larger organic molecule and to remove with volume.Molecule is separated and removes organizational structure completely, its with make by removing liquid in histiocyte and extracellular fluid organization material dewater (as correlation technique electrosurgery drying with evaporate in occur) contrary.The more detailed description that molecule is separated can find in common No. the 5th, 697,882, the United States Patent (USP) transferred the possession of, and whole disclosures of described patent are incorporated herein by reference.
Except Coblation pattern, in certain situations, the Electrosurgical system 100 of Fig. 1 is also useful to sealing comparatively large artery trunks blood vessel (such as, being about 1mm grade at diameter) when for being called in coagulation mode.Therefore, the system of Fig. 1 can have ablation mode, wherein under the first voltage, RF energy is applied to one or more active electrode, its molecule being enough to affect tissue is separated or division, and the system of Fig. 1 can have coagulation mode, wherein RF energy is applied to one or more active electrode (electrode identical or different with ablation mode) under the second low voltage, it is enough to the hemostasis of heating, shrinking, seal, fuse and/or realize the blood vessel cut off in tissue.
By Electrosurgical system 100 rod 102 far-end 108 produce energy density change by adjusting multiple factor, described multiple factor such as: the number of active electrode; Electrode size and interval; Electrode surface area; Raised body on electrode surface and/or sharp edges; Electrode material; The voltage applied; The current limit (such as, connecting with electrode by induction apparatus is placed as) of one or more electrode; With the electric conductivity of the fluid of electrode contact; The density of conductor fluid; And other factors.Therefore, these factors can be handled to control the energy grade of excited electron.Because different organizational structuries can have different molecular links, so Electrosurgical system 100 can be configured to produce be enough to make the molecular scission of particular organization but the energy being not enough to make the molecular scission of its hetero-organization.For example, fatty tissue (such as, fat) has double bond, and double bond needs to rupture higher than the energy grade of 4eV to 5eV (that is, about 8eV grade).Therefore, in certain operations pattern,
technology cannot melt this kind of fatty tissue; But, under comparatively low energy level,
technology may be used for effectively melting cell to discharge fat inside content with liquid form.The double bond that makes the energy that other patterns can have an increase also can rupture by the mode similar with singly-bound (such as, boosted voltage or change the electric current density that electrode configures to increase on electrode).
Can find the more complete description of various phenomenon in the common United States Patent (USP) the 6th, 355, No. 032, the 6th, 149, No. 120, the 6th, 296, No. 136 transferred the possession of, the entire disclosure of described patent is incorporated herein by reference.
Fig. 2 A graphic extension is according to the perspective view of the far-end 108 of the rod 102 of at least some embodiment.In certain embodiments, a part for slender axles 106 can be made up of metal material (such as, TP304 grade rustless steel hypodermic tube).In other embodiments, the part of slender axles can such as, by other applicable material structure, inorganic insulating material.Slender axles 106 can define the circular cross section at handle end or near-end 110 (not having in Fig. 2 to show) place, and can make far-end 108 flatten at least partially define ellipse or semi-circular cross-section.
Be in the embodiment of metal at slender axles, far-end 108 can also comprise the non-conductive space part 200 being coupled to slender axles 106.In some cases, distance piece 200 is potteries, but also equivalence can use other non-conducting materials of aging-resistant (such as, glass) when being exposed to plasma.Distance piece 200 supports the electrode formed by conductive material, is labeled as the diagram active electrode of 202 in Fig. 2 A.Active electrode 202 defines the exposed surface area formed by conductive material, and wherein active electrode 202 is the wire loops with special diameter.For the embodiment using wire loop, wire loop can be molybdenum or tungsten, its diameter is between 0.025 inch and 0.035 inch and comprise 0.025 inch and 0.035 inch, and is more preferably 0.030 inch, and with the exposure standoff distance of distance piece 200 at a distance of about 0.080 inch.Distance piece 200 can have step features (stepfeature) 201, step features 201 for by providing non-conducting surfaces to be shelved on penetration depth adjacent tissue limiting active electrode 202, thus allow more controlled and accurate cutting and provide thermal effect in tissue evenly the degree of depth.In addition, distance piece 200 can define ellipse or semi-circular cross-section to provide the flat support profile of source electrode 202.
In a particular embodiment, active electrode has the edge feature 203 being conducive to forming enhancing plasma at specific diverse location place.Particularly, active electrode 202 can by edge feature 203 (such as, tooth-like part of anything, otch, indenture or raised body) define, edge feature 203 to have between 0.008 inch and 0.012 inch and comprises arteriotomy diameter and the degree of depth of 0.008 inch and 0.012 inch on every side, and be more preferably about 0.010 inch, in the middle body of active electrode 202, leave the light filling bar of about 0.010 inch thickness.With reference to figure 2B, edge feature 203 is preferably placed at the plane P of the linear diameter sectioning active electrode 202
1opposite side at least two positions in, and sectioning the second plane P of active electrode 202 width
2central authorities.Fig. 2 C show source electrode 202 and distance piece 200 substantially along the plane P of Fig. 2 B
2the cross-sectional view intercepted.Particularly, Fig. 2 C indicating characteristic portion is the orientation of the edge feature 203 in the embodiment of a pair symmetrical otch in active electrode 202.In other embodiments specific, expect but do not show, edge feature 203 also can be formed with the protrusion section providing external margin to be formed for the local plasma of the improvement in these regions along active electrode 202 by mold pressing, welding or other formation operations.Contribute at the edge feature 203 of the far-end of active electrode 202 being enabled in the opposite central of active electrode 202 and form local plasma with smoothing cutting.Concise and to the point reference diagram 3A and Fig. 3 B, active electrode 202 also has circular edge or smooth features portion 203b with the tissue of conduction/resistance heated in the position separated away from edge feature 203 at the second diverse location place away from edge feature 203.Particularly, active electrode 202 can be wire loop, it is characterized in that: edge feature 203 is on the summit of ring and smooth features portion 203b is arranged in the either side of the ring being formed with source electrode 202 adjacent to edge feature 203.This conductive heater surrounding tissue contributes to while cutting, providing the adjoint of thin vessels to stop blooding at startup plasma.
Refer again to Fig. 2 A, rod 102 comprises the refurn electrode 204 for completing the current path between active electrode 202 and controller 104.Refurn electrode 204 preferably defines the semicircular component of axle 106 outside, and the distal portions of refurn electrode 204 is preferably exposure.Refurn electrode 204 is suitably connected to controller 104.At least one proximal part of refurn electrode 204 is arranged in electric insulation sheath 206, and electric insulation sheath 206 is formed as one or more electric insulation sheath or coating usually, such as politef, polyimides etc.The electric insulation sheath 206 of the part top being looped around refurn electrode 204 is provided to prevent refurn electrode 204 from contacting with direct between any Adjacent body structure or surgeon.Direct electrical contact between this body structure (such as, tendon) and the common electrode component 204 exposed may cause undesirable heating and the necrosis of the structure at the contact point place causing necrosis.
Refurn electrode 204 is preferably formed by conductive material, is normally selected from the metal of the group be made up of stainless steel alloy, platinum or its alloy, titanium or its alloy, molybdenum or its alloy and nickel or its alloy.With reference now to Fig. 3 A, the distance D between active electrode 202 and refurn electrode 204 preferably roughly remains constant.Thus, preferably the distal lobe of refurn electrode 204 has the non-uniform shapes of the geometry being similar to active electrode 202.In a preferred embodiment, refurn electrode 204 has the features of the extension of protuberance 205 form in remote extension.This extends protuberance 205 and maintains close to uniform distance between active ring electrode 202 and refurn electrode 204.Preferably, extend protuberance 205 close between refurn electrode 204 and active electrode 202 distance (as the summit place at active ring electrode 202 measured), thus maintain the distance D constant between source electrode and all parts of refurn electrode.It also makes the far-end of refurn electrode 204 closer to the tissue as target to improve the electric current conduction of tissue and the saline flow through between active electrode and refurn electrode.This makes evenly transmit electric current continuously through destination organization, to provide the thermal break-through of the larger degree of depth and improve blood vessel condensation during coagulation mode.
In certain embodiments, saline is sent to the far-end 108 of rod, may contribute to plasma and produce.Referring again to Fig. 2 A and Fig. 2 B, discharge orifice 208 is illustrated as on the far-end 108 that is positioned at and separates with the adjacent near-earth of refurn electrode 204.Discharge orifice 208 is formed in the farthest of the insulating sheath 206 around a part for refurn electrode 204.Insulating sheath 206 also produces annular gap between insulating sheath and refurn electrode 204, wherein the whole equi-spaced apart of multiple axial arranged ribs is to form multiple fluid flowing passage 209, and the conductor fluid of discharge guides towards refurn electrode 204 and active electrode 202 by fluid flowing passage 209.The feature of discharge orifice 208 is the distalmost end opening of multiple flow channels 209 of being correlated with.In shown specific embodiment, show eight discharge orifices, but less or more discharge orifice can be expected.Discharge orifice 208 is coupled to flexible tubular element 116 (Fig. 1) by the fluid conduit systems fluid in rod 102.Therefore, saline or other fluids can be drawn in flexible tubular element 116 (Fig. 1) and to discharge to help the circumference around refurn electrode 204 to be formed further by multiple fluid flowing passage 209 and discharge orifice 208 consistent moistening.
In other embodiments, suction is provided at far-end 108 place of rod 102.Fig. 3 B is illustrated in the suction socket 207 (that is, suction ports 207) at far-end 108 place of device, and it is arranged to through non-conductive space part 200 and partly defines the opening in refurn electrode 204.Suction ports 207 is arranged in far-end 108 place, and be preferably only positioned at the side of distance piece 200 in a particular embodiment and be arranged on the lower surface of distance piece 200 that (making ought be in use, suction ports 207 is preferably arranged in below about the angle close to destination organization), and therefore can be arranged in distance piece 200 with protuberance 205 opposite side.Suction ports 207 aspirates the area near far-end 108, to remove excess fluid and to melt residue.The position of suction ports 207 also provides the fully moistening of the active electrode on most advanced and sophisticated opposite side and refurn electrode, saline is most advanced and sophisticated from discharge orifice 208 to dirty around active electrode on the non-suction face of axle, the downside with suction ports 207 of rod of then upwards pulling back.Applicant has been found that particularly advantageously, conductor fluid stream is directed to separate areas away from suction ports 207 to provide the more extensively moistening of the exposed surface of refurn electrode 204, make it possible to be formed evenly plasma.
In addition, concise and to the point reference diagram 2B and Fig. 3 B, suction ports 207 can from plane P
1offset downward, and plane P
1the thickness T of the far-end 108 of slender axles 106 is sectioned.Fig. 3 C shows substantially along the plane P of Fig. 2 B
1the cross-sectional view intercepted.Particularly, Fig. 3 C shows suction ports 207 and the distance piece fluid conduit systems 210 that defined by wall 212.Fluid conduit systems 210 also comprises suction chamber 216, and suction chamber 216 has fluid conduit systems opening 214.In operation, commute bent tube form component 118 (Fig. 1) provides suction, and flexible tubular element 118 extends in the internal capacity of rod 102 and becomes the opening 214 that the opening 214 of suction chamber 216 or fluid are coupled to suction chamber 216.Therefore, conductor fluid, molecule chorista and orgware are drawn in fluid conduit systems 210 by suction ports 207, and eventually through suction chamber 216 and opening 214.Suction chamber 216 and the adjacent near-earth of suction ports 207 separate, and the inventor of this description has been found that the width of the certain depth of suction chamber 216 and opening 214 operates well than other.For example, when not increasing the area of suction chamber 216, fluid conduit systems 210 may meet with blocking.Similarly, if flexible tubular element 118 does not increase at the diameter of the Coupling point at opening 114 place, so blocking may occur.According at least some embodiment, the naturalness of fluid conduit systems 210 length between suction ports 207 and opening 214 changes.The entrance of fluid conduit systems 210 is by suction socket width W
alabelling.According at least some embodiment, the inwall 212 defining fluid conduit systems 210 is converted to by the A/F W of opening 214 smoothly at length L
othe change of the width of labelling, wherein change width is to the W at opening 214 place
oit should be at least half of whole ID of axle.In addition, now referring again to Fig. 2 C, the degree of depth of fluid conduit systems 210 should change to by degree of depth D at least smoothly when it is converted to suction chamber 216
cthe degree of depth of labelling, wherein degree of depth D
csummit should be at least half of the thickness T (Fig. 2 B) of distance piece 200 and be then converted to the degree of depth D at opening 214 place smoothly
o.The present inventor just proposes the naturalness of fluid conduit systems 210 mentioned above by way of example.Other variations from suction ports 207 to opening 214 of the shape of the part of fluid conduit systems 210 and suction chamber 216, separately width and the degree of depth can be used equivalently and change.
For example, as shown in Fig. 2 A-3B, refurn electrode 204 is not be directly connected to active electrode 202.The active electrode 202 when there is destination organization is made to be electrically connected to refurn electrode 204 for completing current path, make conducting liquid (such as, isotonic saline solution) along be derived from discharge orifice 208 and contact both refurn electrode 204 and active electrode 202 liquid path flowing.When applying voltage difference between active electrode 202 and refurn electrode 204, far-end at active electrode 202 is produced high electric field intensity, electric current flow to refurn electrode 204 from active electrode 202, and high electric field intensity causes melting of the destination organization adjacent with the far-end of active electrode 202.
Fig. 4 A shows the cross-sectional elevational view according to the rod 102 of at least some embodiment.Particularly, handle end or the near-end 110 of slender axles 106 is coupled in Fig. 4 display.As shown, slender axles 106 are flexible in handle, but equivalence can also use other mechanisms of slender axles being coupled to handle.Slender axles 106 define the inner conduit 400 for several objects.For example, in the embodiment shown in fig. 4, electric lead 402 and 404 extends through inner conduit 400 to be electrically coupled to active electrode 202 and refurn electrode 204 respectively.Similarly, flexible tubular element 116 extends through inner conduit 400 to be coupled to multiple flow channel 209 and discharge orifice 208 via insulating sheath 206 fluid.
Inner conduit 400 is also used as suction route.Particularly, Fig. 4 B graphic extension suction ports 207.In the embodiment shown, flexible tubular element 118 (performing suction by it) is coupled by handle and then fluid is coupled to inner conduit 400.Therefore, suction ports 207 place that is pumped in provided by flexible tubular element 118 provides suction.When drawing fluid along internal fluid conduit 400, the fluid be drawn in internal fluid conduit 400 can adjoin with the part be present in inner conduit of flexible tubular element 116; But flexible tubular element 116 is sealings, and the fluid therefore aspirated can not be mixed with the fluid (such as, saline) aspirated by flexible tubular element 116.Similarly, when drawing fluid along internal fluid conduit 400, the fluid be drawn in internal fluid conduit 400 can adjoin with the part in internal fluid conduit 400 of electric lead 402 and 404.But, electric lead with by any material electric isolution in wire and internal fluid conduit 400 and the insulant of fluid isolation insulate.Therefore, in the embodiment shown, internal fluid conduit is used for two objects, and one is cross it as flexible tubular element 116 and electric lead and arrive the path of far-end 108, and is used as the conduit that suction is occurred by it.In other embodiments, flexible tubular element 118 can extend partially past or all extend through slender axles 106, and is therefore more directly coupled to suction socket.
Fig. 4 A and Fig. 4 B also graphic extension, according at least some embodiment, a part for slender axles 106 is (such as, part 410) be circular, and another part of slender axles 106 (such as, part 412) is flat, to define ellipse or semi-circular cross-section.In certain embodiments, make far-end 3 centimetres or be less than 3 centimetres to flatten, and in some cases, make last 2 centimetres to flatten.In other embodiments, whole slender axles can define ellipse or semi-circular cross-section.In addition, in shown specific embodiment, the angle between the axle of part 410 and the axle of part 412 is not 0, and in certain embodiments, the acute angle between the axle of part 410 and the axle of part 412 is 20 degree, but equivalence can use greater or lesser angle yet.
As shown in fig. 1, flexible multiconductor cable 112 (and more particularly the electric lead 402,404 of its composition and other possible constituents) is coupled to rod connector 114.Rod connector 114 Coupling Control Unit 104, and more particularly, Coupling Control Unit adapter 120.Fig. 5 display is according to the viewgraph of cross-section (the right) of the rod connector 114 of at least some embodiment and end elevation (left side).Particularly, rod connector 114 comprises protuberance 500, and protuberance 500 operates to guarantee rod connector 114 and controller adapter 120 only with a relative orientation coupling in conjunction with the slotted eye (showing in figure 6) on controller adapter 120.Schematic rod connector 114 also comprises the multiple acusectors 502 protruded from rod connector 114.In many cases, each acusector of described acusector 502 is coupled to an electric lead (two electric leads in described electric lead 504 can be the wires 402 and 404 of Fig. 4) of electric lead 504.In other words, in a particular embodiment, each acusector 502 is coupled to single electric lead, and therefore every schematic acusector of root 502 is coupled to the single electrode of rod 102.In other cases, single acusector 502 is coupled to the multiple electrodes on electrosurgery rod 102.Although Fig. 5 shows four schematic acusectors, in certain embodiments, can exist in rod connector 114 less to 2 acusectors and as many as 26 acusectors.
Fig. 6 display is according to the viewgraph of cross-section (the right) of the controller adapter 120 of at least some embodiment and end-view (left side).Particularly, controller adapter 120 comprises slotted eye 600, and slotted eye 600 operates in conjunction with the protuberance 500 (showing in Figure 5) on rod connector 114 to guarantee that rod connector 114 and controller adapter 120 are only coupled in an orientation.Schematic controller adapter 120 also comprises the multiple acusectors 602 be present in the respective hole of controller adapter 120.Acusector 602 is coupled to the terminals (hereinafter discussing more comprehensively) of the voltage generator in controller 104.When rod connector 114 and controller adapter 120 are coupled, each acusector 602 is coupled to single acusector 502.Although Fig. 6 only shows four schematic acusectors, in certain embodiments, can exist few to two acusectors in rod connector 120, and as many as 26 acusectors.
Although schematically rod connector 114 is shown as and has protuberance 500 and positive electricity pin 502, and controller adapter 120 is shown as has slotted eye 600 and negative electricity pin 602, but in alternative embodiments, rod connector has negative electricity pin and slotted eye, and controller adapter 120 has protuberance and positive electricity pin, or other combinations.In other embodiments, in adapter, the configuration of acusector only can realize that single directional is for connecting adapter, and therefore protuberance and slotted eye are arranged and can be omitted.In other embodiments, can equivalence use for guaranteeing that rod connector and controller adapter are only with other mechanical arrangement of a directional couple.When only having the rod of two electrodes, and described electrode indicates as physical context can be active electrode or refurn electrode, may without the need to guaranteeing that adapter is coupled with certain orientation.
Fig. 7 graphic extension is according to the controller 104 of at least some embodiment.Particularly, controller 104 comprises processor 700.Processor 700 can be microcontroller, and therefore microcontroller can be integrated into one with random access memory (RAM) 702, read only memory (RAM) 704, digital analog converter (D/A) 706, digital output end (D/O) 708 and digital input end (D/I) 710, processor 700 can also provide one or more outside available peripheral bus (such as universal serial bus (such as, I
2c), parallel bus or other buses) and corresponding communication pattern.Processor 700 can also be integrated into one processor 700 can be communicated with external device (ED) and interior arrangement (such as display device 124) with communication logic 712.Although in certain embodiments, controller 104 can realize microcontroller, and in other embodiments, processor 700 also can be implemented as and independent RAM; ROM; Communication D/A, D/O and D/I device and the separate central processing units of COM1 combination of hardware for communicating with peripheral assembly.
The instruction that ROM704 storage can be performed by processor 700.Particularly, ROM704 can comprise software program, and described software program property performance period ground is reduced voltage generator and exports changes plasma relative to the position (hereafter carrying out more discussions) of bar electrode and each embodiment of being connected by display device 124 and/or foot-operated assembly 130 (Fig. 1) and user.RAM702 can be the running memorizer of processor 700, wherein can temporary storage data and can perform instruction according to data.Processor 700 by D/A converter 706 (such as, voltage generator 716), digital output end 708 (such as, voltage generator 716), digital input end 710 (that is, push button switch 126 and pedal assembly 130 (Fig. 1)) and other peripheral units and other devices be coupled in controller 104.
Voltage generator 716 produces selectable interchange (AC) voltage, exchanges the electrode that (AC) voltage is applied to rod 102.In various embodiments, voltage generator defines two terminals 724 and 726.According to each embodiment, voltage generator produce cross-over connection line end 724 with 726 exchange (AC) voltage.In at least some embodiments, voltage generator 716 " floats " from the power balancing electricity controller 104, and therefore when about the ground ground connection in controller 104 or common end (such as, common end 728) measure time, voltage on terminals 724,726 may show or may not show voltage difference, even if be also like this when voltage generator 716 is active.
By voltage generator 716 active terminals 724 and return between terminals 726 produce and apply voltage be RF signal, in certain embodiments, described RF signal has the frequency between about 5 KHz (kHz) and 20 megahertzes (MHz), in some cases, about between 30kHz and 2.5kHz, usually about between 100kHz and 200kHz.In the application relevant to otolaryngology-Head Neck Surgery, about the frequency of 100kHz shows as the most effective.RMS (root-mean-square) voltage produced by voltage generator 716 can from about 5 volts (V) in the scope of 1000V, preferably in the scope from about 10V to 500V, usually about between 100V to 350V, this depends on active electrode size and operation frequency.What produced by voltage generator 716 is the square-wave form in 10V to 2000V scope for the peak-to-peak voltage that melts or cut in certain embodiments, and in some cases in the scope of 100V to 1800V, and in other cases, in the scope of about 28V to 1200V, usually (again depend on electrode size and operation frequency) at about 100V to 320V peak in peak scope.
Still reference voltage generator 716, voltage generator 716 depend on the destination organization that is treated is applied voltage and/or rod 102 the maximum allowable temperature selected be transmitted in several milliwatt to the average power level within the scope of hundreds and thousands of watts to each electrode.Voltage generator 716 is configured to enable user select voltage level according to the real needs of particular procedure.Can find the description to a kind of applicable voltage generator 716 in the common United States Patent (USP) the 6th, 142, No. 992 and the 6th, 235, No. 020 transferred the possession of, whole disclosures of described two patents are incorporated herein by reference for all objects.
In certain embodiments, each operator scheme of voltage generator 716 can be controlled by digital analog converter 706.That is, for example, processor 700 can control output voltage by variable voltage is supplied to voltage generator 716, the voltage in proportion that wherein provided voltage and voltage generator 716 produce.In other embodiments, processor 700 by the one or more digital output signal from digital output end 708 device or can communicate with voltage generator by using the communication based on package of communicator 712 (not concrete display is connected Fig. 8 can not be made to become overcomplicated).
The simplified side view of Fig. 7 also far-end 108 of display bar 102.As shown, the schematic active electrode 202 of rod 102 is electrically coupled to the terminals 724 of voltage generator 716 by adapter 120, and refurn electrode 204 is electrically coupled to the terminals 726 of voltage generator 716.
Fig. 8 display is according to the method for at least some embodiment.Particularly, described method starts (square 800) and proceed to: conductor fluid is flowed being arranged in the fluid conduit systems in electrosurgery rod, conductor fluid is discharged by multiple discharge orifice and flows through the refurn electrode being arranged in fluid conduit systems far-end, and then on active electrode, discharges (square 802); Electric energy (square 804) is applied between active electrode and refurn electrode; In response to energy, in the close formation local plasma (square 806) being arranged in the edge feature on active electrode; A part (square 808) for the destination organization close to edge feature is melted by local plasma; And in response to energy, heat the destination organization of the position separated away from edge feature therefore to provide with hemostasis (square 810).And method terminates (square 812) subsequently.
Discussion is above intended to illustrate principle of the present invention and each embodiment.A large amount of variation and amendment are feasible.For example, although in some cases, electrode design is top electrode and bottom electrode, and this design for discussion object, and should not be regarded as needing any relation with gravity at surgery.Wish that following claims is understood to comprise all these variations and amendment.
Although shown and described the preferred embodiment of present disclosure, under the scope do not departed from herein and teaching, those skilled in the art can modify it.Embodiment described herein is only exemplary and unrestricted meaning.Diverse embodiment and different embodiments is permitted owing to can make in the scope of concept of the present invention, comprise equivalent structure, material or its method, and because technical descriptive requirement can make many amendments in embodiment detailed herein, it should be understood that details is herein understood to schematic instead of the meaning of restriction.
Claims (37)
1. an electrosurgery rod, comprising:
Slender axles, it defines handle end and far-end;
Adapter, it comprises the first acusector and the second acusector;
Insulating sheath, is characterized in that the multiple discharge orifices be positioned on the far-end of described slender axles, and described multiple discharge orifice fluid is coupled to first fluid conduit, and described first fluid conduit is in described slender axles;
The first active electrode formed by conductive material, it is arranged on the far-end of described slender axles, and described first active electrode has edge feature, and described first active electrode is electrically coupled to described first acusector;
The first refurn electrode formed by conductive material, described first refurn electrode comprise be arranged as and the far-end summit of described first active electrode at a distance of the extended characteristics portion of substantially invariable distance, and described first refurn electrode is electrically coupled to described second acusector, wherein said extended characteristics portion comprises protuberance; And
Suction socket, on its far-end being positioned at described slender axles and fluid is coupled to second fluid conduit, described second fluid conduit is in described slender axles.
2. electrosurgery according to claim 1 rod, wherein said edge feature is selected from least one in the group that is made up of tooth-like part of anything, otch, indenture and raised body.
3. electrosurgery according to claim 1 rod, wherein said edge feature comprises otch, and described otch to have between 0.008 inch and 0.012 inch and comprises diameter and the degree of depth of 0.008 inch and 0.012 inch on every side.
4. electrosurgery rod according to claim 1, wherein said edge feature comprises otch, and described otch has diameter and the degree of depth of 0.010 inch on every side.
5. electrosurgery according to claim 1 rod, wherein said edge feature comprises the first otch on the opposite side being arranged in described first active electrode and the second otch.
6. electrosurgery rod according to claim 1, wherein the first active electrode also comprises wire loop.
7. electrosurgery according to claim 6 rod, wherein said wire loop to have between 0.025 inch and 0.035 inch and comprises the diameter of 0.025 inch and 0.035 inch.
8. electrosurgery rod according to claim 6, wherein said wire loop has the diameter of 0.030 inch.
9. electrosurgery according to claim 1 rod, wherein said first active electrode and the non-conductive space part exposure standoff distance of 0.080 inch apart.
10. electrosurgery rod according to claim 9, wherein said non-conductive space part comprises the step features that can be used to the tissue penetration depths limiting described first active electrode.
11. electrosurgery rods according to claim 1, wherein said multiple discharge orifice fluid is coupled to multiple fluid flowing passage, and described multiple fluid flowing passage is arranged in the annular gap between described insulating sheath and described slender axles.
12. electrosurgery rods according to claim 1, wherein said multiple discharge orifice is around described slender axles.
13. electrosurgeries according to claim 1 rods, wherein said multiple discharge orifice near-earth that connects with the tip farthest of described first refurn electrode separates.
14. electrosurgery rods according to claim 1, wherein said suction socket departs from the plane distal thickness of described slender axles sectioned.
15. electrosurgery rods according to claim 1, wherein said suction socket well-defining width, and the width of its spacers fluid conduit systems is converted to the fluid conduit systems A/F of the half of the internal diameter being not less than described axle from described hole width.
16. electrosurgery rods according to claim 15, the degree of depth of wherein said distance piece fluid conduit systems is converted to the fluid conduit systems opening degree of depth from the suction chamber degree of depth of the half being not less than non-conductive space part thickness further.
17. 1 kinds of systems, comprising:
Electrosurgery controller, described electrosurgery controller is configured to produce radio frequency (RF) energy relative to returning terminals at active terminals place;
Electrosurgery rod, it is coupled to described electrosurgery controller, and described electrosurgery rod comprises:
Slender axles, it defines handle end and far-end;
Insulating sheath, is characterized in that the multiple discharge orifices be positioned on the far-end of described slender axles, and described multiple discharge orifice fluid is coupled to first fluid conduit, and described first fluid conduit is in described slender axles;
The first active electrode formed by conductive material, it is arranged on the far-end of described slender axles, and described first active electrode has edge feature, and described first active electrode is electrically coupled to described first acusector;
The first refurn electrode formed by conductive material, described first refurn electrode comprise be arranged as and the far-end summit of described first active electrode at a distance of the extended characteristics portion of substantially invariable distance, and described first refurn electrode is electrically coupled to described second acusector, wherein said extended characteristics portion comprises protuberance; And
Suction socket, on its far-end being positioned at described slender axles and fluid is coupled to second fluid conduit, described second fluid conduit is in described slender axles.
18. electrosurgeries according to claim 17 rods, wherein said edge feature is selected from least one in the group that is made up of tooth-like part of anything, otch, indenture and raised body.
19. electrosurgeries according to claim 17 rods, wherein said edge feature comprises otch, and described otch to have between 0.008 inch and 0.012 inch and comprises diameter and the degree of depth of 0.008 inch and 0.012 inch on every side.
20. electrosurgery rods according to claim 17, wherein said edge feature comprises otch, and described otch has diameter and the degree of depth of 0.010 inch on every side.
21. electrosurgery rods according to claim 17, wherein the first active electrode also comprises wire loop.
22. electrosurgeries according to claim 21 rods, wherein said wire loop to have between 0.025 inch and 0.035 inch and comprises the diameter of 0.025 inch and 0.035 inch.
23. electrosurgery rods according to claim 21, wherein said wire loop has the diameter of 0.030 inch.
24. electrosurgeries according to claim 17 rods, wherein said first active electrode and the non-conductive space part exposure standoff distance of 0.080 inch apart.
25. electrosurgery rods according to claim 17, wherein said multiple discharge orifice fluid is coupled to multiple fluid flowing passage, and described multiple fluid flowing passage is arranged in the annular gap between described insulating sheath and described slender axles.
26. electrosurgery rods according to claim 17, wherein said multiple discharge orifice is around described slender axles.
27. electrosurgeries according to claim 17 rods, wherein said multiple discharge orifice near-earth that connects with the tip farthest of described first refurn electrode separates.
28. electrosurgery rods according to claim 17, wherein said suction socket departs from the plane distal thickness of described slender axles sectioned.
29. 1 kinds of electrosurgery rods, comprising:
Slender axles, it defines handle end and far-end;
Adapter, it comprises the first acusector and the second acusector;
The first active electrode formed by conductive material, it is arranged on the far-end of described slender axles, and described first active electrode is electrically coupled to described first acusector;
Wherein said first active electrode has edge feature at the first discrete positions place, and has smooth features portion at the second discrete positions place; And
The first refurn electrode formed by conductive material, described first refurn electrode is electrically coupled to described second acusector, and described first refurn electrode comprises extended characteristics portion, and described extended characteristics portion comprises protuberance.
30. electrosurgery rods according to claim 29, wherein said edge feature can be used to ablation tissue, and wherein said smooth features portion can be used to heat tissue to carry out with hemostasis.
31. electrosurgery rods according to claim 29, it also comprises the suction socket on the far-end being positioned at described slender axles, and wherein said suction socket is only positioned at the side of described slender axles and is arranged on the lower surface of the non-conductive space part supporting described first active electrode.
32. 1 kinds of electrosurgery rods, comprising:
Slender axles, it defines handle end and far-end;
Active electrode, it is disposed on the far-end of described slender axles, and described active electrode has far-end summit; And
Refurn electrode, it is disposed on described slender axles, and neighboringly separate with described active electrode, described refurn electrode comprise the first side being disposed in described axle in the protuberance of remote extension, and there is the spacing between the far-end summit being selected as making the remote edge of a part for described protuberance and described active electrode along the length at the described edge of the described part of described protuberance but uniform shape.
33. is excellent according to the electrosurgery of claim 32, and wherein, described far-end summit comprises edge feature, and this edge feature is shaped as the formation of the plasma of the regional area promoting contiguous active electrode.
34. according to the electrosurgery of claim 33 rod, wherein, is shaped as and promotes the formation of plasma to comprise to be shaped as compared with in other regions of contiguous active electrode, to provide relatively stronger electric field in described regional area.
35. is excellent according to the electrosurgery of claim 33 or 34, and wherein, described edge feature is provided by least one being selected from the group of the tooth-like part of anything included in source electrode, otch, indenture, raised body and pattern.
36. is excellent according to the electrosurgery of any one in claim 32 to 35, wherein, described slender axles also comprise multiple fluid flowing passage, and described multiple fluid flowing passage is configured to provide conductor fluid to be formed for plasma towards the far-end summit of active electrode.
37. according to the electrosurgery of any one in claim 32 to 36 rod, also comprise for by excess fluid with melt the suction ports that residue removes from described far-end, wherein said suction ports is disposed on second side relative with described first side of described axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510671185.3A CN105286990B (en) | 2011-02-09 | 2012-02-09 | Fine dissection electrosurgical device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| US13/023,603 US9168082B2 (en) | 2011-02-09 | 2011-02-09 | Fine dissection electrosurgical device |
| US13/023,603 | 2011-02-09 |
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| CN201510671185.3A Division CN105286990B (en) | 2011-02-09 | 2012-02-09 | Fine dissection electrosurgical device |
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| CN102631239A CN102631239A (en) | 2012-08-15 |
| CN102631239B true CN102631239B (en) | 2015-11-18 |
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| CN201510671185.3A Expired - Fee Related CN105286990B (en) | 2011-02-09 | 2012-02-09 | Fine dissection electrosurgical device |
| CN201210028800.5A Expired - Fee Related CN102631239B (en) | 2011-02-09 | 2012-02-09 | Fine dissection electrosurgical device |
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| CN (2) | CN105286990B (en) |
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- 2012-02-09 DE DE102012002532A patent/DE102012002532A1/en not_active Withdrawn
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| GB201514942D0 (en) | 2015-10-07 |
| GB201504952D0 (en) | 2015-05-06 |
| GB2522352B (en) | 2015-09-02 |
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| DE202012001295U1 (en) | 2012-03-14 |
| GB2488039A (en) | 2012-08-15 |
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| CN105286990A (en) | 2016-02-03 |
| GB2522352A9 (en) | 2015-08-05 |
| GB2522352A (en) | 2015-07-22 |
| US9168082B2 (en) | 2015-10-27 |
| CN102631239A (en) | 2012-08-15 |
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| GB2488039B (en) | 2015-12-16 |
| US20120203219A1 (en) | 2012-08-09 |
| GB2526028A (en) | 2015-11-11 |
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